Aside from degree of flame on the tops, are there any other differences between the different reborn models i.e. 60, 80, etc... Do the lower spec models have 2-3 piece backs opposed to 1 piece, etc...Do the reborns have nitro or poly finishes?

Re. differences between l.r. models. I have an old (80's) one that construction wise appears to be top of the range - 1 piece back, 2 piece top,zebra humbuckers, fretboard binding trimmed around the fret edges etc. The only thing is, the top is just a plain tobacco sunburst. Does anyone know what model it is (no labels anywhere)?
Joe